59 lines
2.1 KiB
JavaScript
59 lines
2.1 KiB
JavaScript
import { EMPTY } from '../observable/empty';
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import { operate } from '../util/lift';
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import { createOperatorSubscriber } from './OperatorSubscriber';
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import { innerFrom } from '../observable/innerFrom';
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import { timer } from '../observable/timer';
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export function repeat(countOrConfig) {
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let count = Infinity;
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let delay;
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if (countOrConfig != null) {
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if (typeof countOrConfig === 'object') {
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({ count = Infinity, delay } = countOrConfig);
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}
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else {
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count = countOrConfig;
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}
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}
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return count <= 0
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? () => EMPTY
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: operate((source, subscriber) => {
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let soFar = 0;
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let sourceSub;
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const resubscribe = () => {
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sourceSub === null || sourceSub === void 0 ? void 0 : sourceSub.unsubscribe();
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sourceSub = null;
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if (delay != null) {
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const notifier = typeof delay === 'number' ? timer(delay) : innerFrom(delay(soFar));
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const notifierSubscriber = createOperatorSubscriber(subscriber, () => {
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notifierSubscriber.unsubscribe();
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subscribeToSource();
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});
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notifier.subscribe(notifierSubscriber);
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}
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else {
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subscribeToSource();
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}
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};
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const subscribeToSource = () => {
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let syncUnsub = false;
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sourceSub = source.subscribe(createOperatorSubscriber(subscriber, undefined, () => {
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if (++soFar < count) {
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if (sourceSub) {
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resubscribe();
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}
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else {
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syncUnsub = true;
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}
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}
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else {
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subscriber.complete();
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}
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}));
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if (syncUnsub) {
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resubscribe();
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}
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};
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subscribeToSource();
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});
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}
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//# sourceMappingURL=repeat.js.map
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